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Ch. 6 Study Stack
| Term | Definition |
|---|---|
| auricle | projected part of the external ear |
| pinna | external passage for sounds collected from the auricle to the tympanic membrane |
| external auditory meatus | external passage for sounds collected from the auricle to the tympanic membrane |
| cerumen | a waxy substance secreted by glands located throughout the external canal |
| tympanic membrane | drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear |
| tympanum | drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear |
| malleus (hammer) | first of the three auditory ossicles of the middle ear |
| incus (anvil) | middle of the three auditory ossicles of the middle ear |
| stapes (stirrup) | last of the three auditory ossicles of the middle ear |
| eustachian tube | tube connecting the middle ear to the pharynx (throat) |
| auditory tube | tube connecting the middle ear to the pharynx (throat) |
| oval window | membrane that covers the opening between the middle ear and internal ear |
| labyrinth | sense body movement and position to maintain balance and equilibrium |
| cochlea | coiled tubular structure of the internal ear that contains the spiral organ of Corti |
| perilymph | fluid that fills the bony labyrinth of the internal ear |
| endolymph | fluid within the membranous labyrinth of the internal ear |
| spiral organ | contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing |
| organ of Corti | contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing |
| vestibule | functions to provide body balance and equilibrium |
| utricle | the larger of two sacs within the membranous labyrinth of the vestibule in the inner ear |
| saccule | the smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear |
| semicircular canals | three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement |
| otalgia | earache |
| otorrhagia | bleeding from the ear |
| otorrhea | purulent drainage from the ear |
| tinnitus | a ringing or buzzing in the ears; a jingling |
| vertigo | a turning round; dizziness |
| otitis externa | inflammation of the external acoustic meatus |
| myringitis | inflammation of the eardrum |
| otitis media | inflammation of the middle ear |
Created by:
sheerinmansoor
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